Multi-gear adjusting warm air blower

Abstract

The utility model belongs to the field of warm air blowers, and particularly relates to a multi-gear adjusting warm air blower, which comprises a shell, a fan and a heating sheet, the shell is provided with an air inlet and an air outlet, the air inlet, the air outlet and the extension direction of the air inlet and the air outlet are combined to form an air path, and the heating sheet is positioned on the air path. The fan heater further comprises a cooling fin and a gear shifting module, a mounting position used for mounting the gear shifting module is formed at the cooling end of the cooling fin, and the heating piece, the fan, the cooling fin and the gear shifting module are all mounted in the shell. According to the fan heater, a heating and heat dissipation system composed of the fan, the heating piece and the air path ensures that the basic heat dissipation function of the fan heater is achieved; besides, due to the arrangement of the cooling fins and the installation positions, the gear shifting module can be installed on the installation positions according to actual conditions, heat dissipation of the gear shifting module is achieved, and on the basis that multi-gear adjustment is achieved, normal operation of the gear shifting module of the fan heater is guaranteed through the cooling fins.

Description

Technical Field

[0001] The utility model belongs to the field of warm air heaters, and particularly relates to a warm air heater. Background Art

[0002] For the existing warm air heaters, their working principle is to generate heat through heating elements, and then blow the heat emitted by the heating elements through a fan, so as to realize the function of conveying warm air.

[0003] However, the gears of the existing warm air heaters are not rich enough. Usually, there is only one gear or a few gears. An important reason is that too many gears require high-power devices, and the heat dissipation problem of high-power devices is a difficult problem to solve, or the cost of solving it is too high, which has always restricted the development of the warm air heater product in terms of multiple gears.

[0004] Therefore, there is an urgent need to develop a warm air heater with multiple gears, good heat dissipation effect and low cost. Summary of the Utility Model

[0005] In order to solve the above problems, the purpose of the utility model is to provide a multi-gear adjustable warm air heater, which has good heat dissipation effect, multiple gears and low cost.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows.

[0007] A multi-gear adjustable warm air heater includes a housing, a fan and a heating element. The housing has an air inlet and an air outlet. The air inlet, the air outlet and the extension directions of the two form an air path. The heating element is located on the air path. It is characterized in that the warm air heater further includes a heat sink and a gear adjustment module. The heat dissipation end of the heat sink forms an installation position for installing the gear adjustment module. The heating element, the fan, the heat sink and the gear adjustment module are all installed in the housing.

[0008] In the utility model, the heating and heat dissipation system composed of the fan, the heating element and the air path ensures the realization of the basic heat dissipation function of the warm air heater; in addition, the setting of the heat sink and the installation position can install the gear adjustment module on the installation position according to the actual situation, so as to realize the heat dissipation of the gear adjustment module. On the basis of realizing multi-gear adjustment, the heat sink ensures the normal operation of the gear adjustment module of the warm air heater.

[0009] Further, the gear shifting module includes a PCB board and a thyristor. The thyristor is electrically connected to the PCB board and is installed at the installation position. Preferably, the thyristor is detachably connected to the installation position, as long as it can achieve heat dissipation by contacting the heat dissipation end of the heat sink. During specific operation, a gear shifting circuit is provided on the PCB board. The combination of the PCB board and the thyristor forms a gear shifting module for adjusting the gears of the heater. Since the thyristor generates a relatively large amount of heat during operation, installing the thyristor at the installation position can achieve effective heat dissipation and ensure the normal operation of the gear shifting module. The complete gear shifting circuit composed of the PCB board and the thyristor is a conventional technology and will not be elaborated in this utility model. The main feature of this utility model is to separate the thyristor from the PCB board and install the thyristor at the installation position, thus eliminating the need to set up a complex heat dissipation structure and worrying about the impact of the thyristor on the PCB board.

[0010] Further, an installation frame is also provided inside the housing. The installation frame is provided with openings corresponding to the air inlet and the air outlet. The fan is installed on the openings, the heating element is installed inside the installation frame, and the heat sink is installed on the inner side surface of the installation frame. At least a part of the heat dissipation end of the heat sink exposes outside the outer side surface of the installation frame to form the installation position. The setting of the installation frame can better install other structures, ensure the overall stability of the product, and facilitate the overall assembly of the product. Preferably, the above installations are all preferably in a detachable installation manner, such as screw installation.

[0011] Further, the heater further includes a control box. The control box is connected to one side of the installation frame. An installation slot is provided inside the control box. The PCB board is installed in the installation slot. The thyristor is electrically connected to the PCB board through a wire.

[0012] Further, the heat sink is located on the air path. The position setting of the heat sink enables one fan to simultaneously achieve heat dissipation of the heating element and the heat sink. It not only has a simple structure but also can effectively reduce the volume and cost of the actual product.

[0013] Further, filter nets are provided on both the air inlet and the air outlet. The setting of the filter nets can filter some larger sundries while realizing the heating function of the heater, ensuring the safe operation of the heater.

[0014] Further, the heater further includes a base. The housing is rotatably connected to the base. The relative rotatable setting between the base and the housing can expand the area range that the heater can directly blow to, facilitating the use of the heater. The rotatable connection structure is a conventional structure as long as it can achieve relative rotation between the housing and the base.

[0015] Further, a handle groove is also provided at the top of the back surface of the housing. The setting of the handle groove can facilitate the handling and moving of the heater.

[0016] The beneficial effects of the present utility model are as follows. Compared with the prior art, the heating and heat dissipation system composed of the fan, heating element and air passage of the present utility model ensures the realization of the basic heat dissipation function of this heater; in addition, the arrangement of the heat sink and the installation position enables the installation of the gear adjustment module on the installation position according to the actual situation, thereby realizing the heat dissipation of the gear adjustment module. On the basis of realizing multi-gear adjustment, the heat sink ensures the normal operation of the gear adjustment module of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the first angle of the present utility model.

[0018] Figure 2 is a schematic structural view of the second angle of the present utility model.

[0019] Figure 3 is a schematic structural view of the first angle of the heater of the present utility model with part of the housing hidden.

[0020] Figure 4 is a schematic structural view of the second angle of the heater of the present utility model with part of the housing hidden.

[0021] Figure 5 is a schematic structural view of the heater of the present utility model with part of the housing and the fan hidden. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] See Figures 1-5 , this embodiment provides a multi-gear adjustable heater, including a housing 1, a fan 2 and a heating element 3. The housing 1 has an air inlet 11 and an air outlet 12. The air inlet 11, the air outlet 12 and the extension directions of the two form an air passage. The heating element 3 is located on the air passage. It is characterized in that the heater further includes a heat sink 4 and a gear adjustment module 5. The heat dissipation end of the heat sink 4 forms an installation position 41 for installing the gear adjustment module 5. The heating element 3, the fan 2, the heat sink 4 and the gear adjustment module 5 are all installed in the housing 1.

[0024] In the present utility model, the heating and heat dissipation system composed of the fan 2, the heating element 3 and the air passage ensures the realization of the basic heat dissipation function of this heater; in addition, the arrangement of the heat sink 4 and the installation position 41 enables the installation of the gear adjustment module 5 on the installation position 41 according to the actual situation, thereby realizing the heat dissipation of the gear adjustment module 5. On the basis of realizing multi-gear adjustment, the heat sink 4 ensures the normal operation of the gear adjustment module 5 of the heater.

[0025] In this embodiment, the gear shifting module 5 includes a PCB board 51 and a thyristor (not shown in the figure). The thyristor is electrically connected to the PCB board 51 and is installed at the installation position 41. Specifically, the thyristor is detachably connected to the installation position 41. During specific operation, a gear shifting circuit is provided on the PCB board 51. The PCB board 51 and the thyristor are combined to form the gear shifting module 5 for adjusting the gears of the heater. Since the thyristor generates a relatively large amount of heat during operation, installing the thyristor at the installation position 41 can achieve effective heat dissipation and ensure the normal operation of the gear shifting module 5. The complete gear shifting circuit composed of the PCB board and the thyristor is a conventional technology. The main feature of the present utility model is to separate the thyristor from the PCB board and install the thyristor at the installation position, thus eliminating the need to set up a complex heat dissipation structure and worrying about the impact of the thyristor on the PCB board.

[0026] In this embodiment, an installation frame 6 is further provided inside the housing 1. The installation frame 6 is provided with openings corresponding to the air inlet 11 and the air outlet 12. The fan 2 is installed on the openings, the heating element 3 is installed inside the installation frame 6, and the heat sink 4 is installed on the inner side surface of the installation frame 6. At least a part of the heat dissipation end of the heat sink 4 protrudes from the outer side surface of the installation frame 6 to form the installation position 41. The setting of the installation frame 6 can better install other structures, ensure the overall stability of the product, and facilitate the overall assembly of the product.

[0027] In this embodiment, the heater further includes a control box 7. The control box 7 is connected to one side of the installation frame 6. An installation slot 71 is provided inside the control box 7. The PCB board 51 is installed in the installation slot 71, and the thyristor is electrically connected to the PCB board 51 through a wire.

[0028] In this embodiment, the heat sink 4 is located on the air path. The position setting of the heat sink 4 enables one fan 2 to simultaneously dissipate the heat of the heating element 3 and the heat sink 4. This not only has a simple structure but also can effectively reduce the volume and cost of the actual product.

[0029] In this embodiment, filter nets 8 are provided on both the air inlet 11 and the air outlet 12. The setting of the filter nets 8 can filter some larger sundries while realizing the heating of the heater, ensuring the safe operation of the heater.

[0030] In this embodiment, the heater further includes a base 9. The housing 1 is rotatably connected to the base 9. The relative rotatable setting of the base 9 and the housing 1 can expand the area range that the heater can directly blow to, facilitating the use of the heater. The rotatable connection structure is a conventional structure, and it only needs to be able to realize the relative rotation between the housing and the base.

[0031] In this embodiment, a handle groove 10 is further provided at the top of the back surface of the housing. The provision of the handle groove 10 facilitates the handling and moving of the heater.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-speed adjustable heater, comprising a housing, a fan and a heating plate, wherein the housing has an air inlet and an air outlet, the air inlet, the air outlet and the extension direction of the two form an air path, the heating plate is located on the air path, and is characterized in that: The heater also includes a heat sink and a gear adjustment module. The heat dissipation end of the heat sink forms an installation position for installing the gear adjustment module. The heating plate, the fan, the heat sink and the gear adjustment module are all installed in the shell.

2. A multi-speed adjustable heater according to claim 1, characterized in that: The gear adjustment module includes a PCB board and a thyristor, the thyristor is electrically connected to the PCB board, and the thyristor is installed on the installation position.

3. The multi-speed adjustable heater according to claim 2, characterized in that: A mounting frame is also provided in the shell, and the mounting frame is provided with openings corresponding to the air inlet and the air outlet. The fan is installed on the opening, the heating plate is installed in the mounting frame, the heat sink is installed on the inner side surface of the mounting frame, and at least a part of the heat dissipation end of the heat sink is exposed on the outer side surface of the mounting frame to form the mounting position.

4. The multi-speed adjustable heater according to claim 3, characterized in that: The heater also includes a control frame, which is connected to one side of the mounting frame. A mounting groove is provided in the control frame, and the PCB board is mounted in the mounting groove. The thyristor is electrically connected to the PCB board through a wire.

5. The multi-speed adjustable heater according to claim 1, characterized in that: The heat sink is located on the wind path.

6. The multi-speed adjustable heater according to claim 1, characterized in that: The air inlet and the air outlet are both provided with filter screens.

7. The multi-speed adjustable heater according to claim 1, characterized in that: The heater also includes a base, and the shell is rotatably connected to the base.

8. The multi-speed adjustable heater according to claim 1, characterized in that: A handle groove is also provided on the top of the back side of the shell.

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